Editors. "Revolt in Portugal when Alfonso VI is banished by his brother". The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=16534, accessed 22 May 2013.]
Revolt breaks out in Portugal when Alfonso VI is banished to the Azores by his brother, Pedro, who had acted as Regent during the King's illness.